Category labels and values
Units and value type — count, percentage, or currency
Series to compare, for grouped or stacked layouts
Audience and the comparison that matters most
Chart tools
Public tool
Turn category comparisons into a bar chart people can read.
Give Vizify the categories, values, and takeaway. It returns a chart brief with the right orientation, grouping, and labeling for an accurate comparison.
Native Mermaid XY chart, not a generic template Vertical, horizontal, grouped, or stacked layouts Ready to generate and refine in Vizify
Start with the messy versionOptional choices help Vizify shape the handoff.
Try a starting point
Your brief and choices open in Vizify for review. Nothing runs until you send it.
Bar chart structure (Mermaid-native XY chart)
Axis, scale, and label guidance
Generation-ready chart prompt
What it does
Built to hand back finished work.
Native Mermaid XY chart routing
Vizify sends bar chart requests to Mermaid's native XY chart type by default — built for accurate category comparisons — and falls back to MakeCharts only when the requested format needs it.
Four layouts for different comparisons
Choose vertical, horizontal, grouped, or stacked bars so single-category, multi-category, and multi-series comparisons each get a layout that fits them.
Built for honest comparison
Axis scale, category order, and labels are chosen to make differences clear without exaggerating small gaps or hiding large ones.
Continue with the context intact
The complete brief opens in Vizify, where you can generate, review, revise, and save the work without rebuilding the prompt.
FAQ
Questions, answered.
What data do I need to create a bar chart?
Provide category labels, their values, and the unit of measurement — count, percentage, currency, or another unit. Add the audience and the comparison you want to highlight; rough notes are fine, Vizify structures them into a chart brief.
Can I make a grouped or stacked bar chart?
Yes. Choose Grouped to place multiple series side by side within each category, or Stacked to show how series add up to a category total. Both need each value labeled with its series name.
What's the difference between a bar chart and a column chart?
They're the same chart type shown in a different orientation. Vizify's Horizontal option produces what's commonly called a bar chart; Vertical produces what's commonly called a column chart. Horizontal works well when category labels are long.
How many categories can one bar chart show clearly?
Roughly 8-12 categories stay readable in a single chart. Beyond that, group smaller categories together, split the comparison into multiple charts, or switch to horizontal orientation so labels have more room.
Should I use a bar chart or a pie chart for this data?
Use a bar chart to compare values across categories, especially with more than five or six categories or when exact differences matter. Use a pie chart when the categories are parts of one whole and the share of the total is the point — try pie-chart-maker for that case.
Can I compare more than one series in the same bar chart?
Yes — choose Grouped or Stacked and provide a value for each series within every category. If the series changes continuously over time rather than by category, line-chart-maker is usually the better fit.
Does Vizify use Mermaid or another engine to render the bar chart?
Bar charts route to Mermaid's native XY chart type by default, since it's purpose-built for this format. Vizify uses MakeCharts only as a fallback when the requested bar format specifically needs it.
Can negative values appear in the bar chart?
Yes. Negative values are preserved and rendered as bars extending below the zero baseline, as long as they're clearly included in your data.
Do I need an account to create a bar chart?
No. You can prepare the brief here without an account. Sign in to Vizify when you want to generate, save, or reuse the chart.
Can I save and reuse the chart and its data later?
Yes. In Vizify you can save the artifact, prompt, and underlying data, then adapt them for a later report or update the same chart with new numbers.
What makes a good bar chart brief
List categories with consistent labels, one value per category (or per category-and-series pair for grouped or stacked layouts), and the unit those values are measured in. Note which comparison matters most — largest versus smallest, above versus below a target — so Vizify can emphasize it in the layout.
Common bar chart mistakes to avoid
Avoid mixing units within one chart, such as some values in dollars and others in percentage. Avoid starting the value axis somewhere other than zero, which exaggerates small differences. And avoid cramming more than a dozen categories into a single vertical chart — long category names usually read better in a horizontal layout.
Bar, column, grouped, or stacked — picking the right layout
Use a single-series vertical or horizontal bar for one metric per category. Use grouped bars to compare two or three series side by side within each category. Use stacked bars when the series should visibly sum to a category total. For a trend across time instead of a comparison across categories, line-chart-maker is usually the better tool.
Start with the rough version
Open Vizify